Just because you’re called The Sunscreen Company, it doesn’t mean that you only have to stick to making sunscreen. You can also make products that fight all the nasty side effects of sun exposure, like dark spots, for example.
Your best bet? Attack them on multiple fronts. If one treatment doesn’t do the trick, bombard them with two. This is the approach Cyberderm recommends, too. They make two weapons against dark spots. Here’s all you need to know about them: